{"product_id":"allen-bradley-1734-ob8s-b-point-guard-i-o-safety-digital-output-module","title":"Allen-Bradley 1734-OB8S\/B POINT Guard I\/O Safety Digital Output Module","description":"\u003ch1\u003eAllen-Bradley 1734-OB8S\/B POINT Guard I\/O Safety Digital Output Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1734-OB8S\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-OB8S\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSafety Digital Output Module utilized to execute safety-rated sourcing output switching across CIP Safety and POINT Guard I\/O platforms. The module provides eight sourcing outputs with integrated diagnostic monitoring, electronic short-circuit protection, and test pulse functionality for safety-related control circuits.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003e1734-OB8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Revision\u003c\/td\u003e\n\u003ctd\u003e\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003ePOINT Guard I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSafety Digital Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe supplied documentation identifies\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-OB8S\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eas a Series B hardware revision. No additional ordering suffix matrix is specified.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1734-OB8S\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003ePOINT Guard I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSafety Digital Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs per Module\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eCurrent sourcing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current\u003c\/td\u003e\n\u003ctd\u003e1 A per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAggregate Module Current\u003c\/td\u003e\n\u003ctd\u003e8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAggregate Current per Terminal Base\u003c\/td\u003e\n\u003ctd\u003e4 A at 40 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2 VDC to 28.8 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResidual Voltage Drop\u003c\/td\u003e\n\u003ctd\u003eLess than 0.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeakage Current\u003c\/td\u003e\n\u003ctd\u003e0.1 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-Circuit Detection\u003c\/td\u003e\n\u003ctd\u003eHigh, low, and cross-circuit fault detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-Circuit Protection\u003c\/td\u003e\n\u003ctd\u003eElectronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReaction Time\u003c\/td\u003e\n\u003ctd\u003eLess than 6.2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePOINTBus Current Consumption\u003c\/td\u003e\n\u003ctd\u003e190 mA at 5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V continuous basic insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3.02 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e10.32 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Category\u003c\/td\u003e\n\u003ctd\u003eCategory 2 signal ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCIP Safety Network and I\/O Redundancy Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1734-OB8S\/B operates within CIP Safety architectures using safety-related communication between POINT Guard I\/O and GuardLogix controllers. The module supports dual-channel safety circuit implementation and incorporates diagnostic mechanisms for cross-circuit, low-side, and high-side fault detection. Its eight-output configuration increases safety I\/O density while maintaining deterministic safety state execution through the distributed I\/O infrastructure.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What diagnostic faults can the module detect?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports detection of high-side short circuits, low-side short circuits, and cross-circuit wiring faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum reaction time of the safety outputs?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe specified reaction time is less than 6.2 ms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which terminal bases are compatible with the 1734-OB8S\/B?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompatible terminal bases include 1734-TB, 1734-TBS, 1734-TOP, 1734-TOPS, 1734-TOP3, and 1734-TOP3S.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eVerify that the field supply voltage remains within the specified 19.2 VDC to 28.8 VDC operating range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstall the module only within approved POINT Guard I\/O assemblies and compatible terminal bases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoute safety circuit wiring separately from non-safety control and power conductors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eValidate safety channel wiring and fault-monitoring functions during commissioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain enclosure conditions within the specified operating temperature limits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm grounding continuity and shield termination practices according to the project safety design.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePerform controller and module configuration verification before placing safety outputs into service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43479183589466,"sku":"1734-OB8S\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1734-OB8SB2.jpg?v=1781147445","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1734-ob8s-b-point-guard-i-o-safety-digital-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}